Storage Checkpoint administrative operations require the fsckptadm utility.
fsckptadm(1M) manual page.
You can use the fsckptadm utility to create and remove Storage Checkpoints, change attributes, and ascertain statistical data. Every Storage Checkpoint has an associated name, which allows you to manage Storage Checkpoints; this name is limited to 127 characters and cannot contain a colon (:).
Storage Checkpoints require some space for metadata on the volume or set of volumes specified by the file system allocation policy or Storage Checkpoint allocation policy. The fsckptadm utility displays an error if the volume or set of volumes does not have enough free space to contain the metadata. You can roughly approximate the amount of space required by the metadata using a method that depends on the disk layout version of the file system.
For disk layout Version 7, multiply the number of inodes by 1 byte, and add 1 or 2 megabytes to get the approximate amount of space required. You can determine the number of inodes with the fsckptadm utility.
Use the fsvoladm command to determine if the volume set has enough free space.
fsvoladm(1M) manual page.
The following example lists the volume sets and displays the storage sizes in human-friendly units:
# fsvoladm -H list /mnt0 devid size used avail name 0 20 GB 10 GB 10 GB vol1 1 30 TB 10 TB 20 TB vol2